If a ball is rolling in a straight line and you push it to the right, its velocity will to the right. a. displace b. frame c. accelerate d. reference

The correct answer is "accelerate".

Explanation:

Acceleration is the rate of change of velocity.

The mathematical expression for acceleration is as follows;

Here, a is the acceleration, v is the final velocity, u is the initial velocity and t is the time taken.

In the given problem, a ball is rolling in a straight line. If the force is applied to it to the right then its velocity increases. It will go towards right. The velocity will accelerate to the right in this case.

If the force is applied to ball to the left then its velocity decrease. In this case, the ball will decelerate.

Therefore, the correct option is (c).

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.